76 lines
3.0 KiB
C#
76 lines
3.0 KiB
C#
#region Disclaimer / License
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// Copyright (C) 2015, The Duplicati Team
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// http://www.duplicati.com, info@duplicati.com
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//
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// This library is free software; you can redistribute it and/or
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// modify it under the terms of the GNU Lesser General Public
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// License as published by the Free Software Foundation; either
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// version 2.1 of the License, or (at your option) any later version.
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//
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// This library is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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// Lesser General Public License for more details.
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//
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// You should have received a copy of the GNU Lesser General Public
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// License along with this library; if not, write to the Free Software
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// Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
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//
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#endregion
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using System;
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namespace Duplicati.Library.Utility
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{
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/// <summary>
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/// A small utility stream that allows to keep streams open and counts the bytes sent through. </summary>
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/// </summary>
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public class ShaderStream : System.IO.Stream
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{
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private readonly System.IO.Stream m_baseStream;
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private readonly bool m_keepBaseOpen;
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private long m_read = 0;
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private long m_written = 0;
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public ShaderStream(System.IO.Stream baseStream, bool keepBaseOpen)
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{
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if (baseStream == null)
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throw new ArgumentNullException(nameof(baseStream));
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this.m_baseStream = baseStream;
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this.m_keepBaseOpen = keepBaseOpen;
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}
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public long TotalBytesRead { get { return m_read; } }
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public long TotalBytesWritten { get { return m_written; } }
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public override bool CanRead { get { return m_baseStream.CanRead; } }
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public override bool CanSeek { get { return m_baseStream.CanSeek; } }
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public override bool CanWrite { get { return m_baseStream.CanWrite; } }
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public override long Length { get { return m_baseStream.Length; } }
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public override long Position
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{
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get { return m_baseStream.Position; }
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set { m_baseStream.Position = value; }
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}
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public override void Flush() { m_baseStream.Flush(); }
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public override long Seek(long offset, System.IO.SeekOrigin origin) { return m_baseStream.Seek(offset, origin); }
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public override void SetLength(long value) { m_baseStream.SetLength(value); }
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public override int Read(byte[] buffer, int offset, int count)
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{
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int r = m_baseStream.Read(buffer, offset, count);
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m_read += r;
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return r;
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}
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public override void Write(byte[] buffer, int offset, int count)
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{
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m_baseStream.Write(buffer, offset, count);
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m_written += count;
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}
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protected override void Dispose(bool disposing)
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{
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if (disposing && !m_keepBaseOpen)
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m_baseStream.Close();
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base.Dispose(disposing);
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}
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}
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}
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